@article{ref1,
title="Experimental studies of damages due to helicopter transportation. Helicopter transportation of the severely injured; indications and experiences",
journal="Hefte zur Unfallheilkunde",
year="1969",
author="Schiechel, F. A.",
volume="99",
number="",
pages="118-122",
abstract="<p>[Abstract unavailable]</p> <p>Language: de</p>",
language="de",
issn="0085-1469",
doi="",
url="http://dx.doi.org/"
}